Email them the moment it's back

Yes. For variable products the form appears when the customer selects an out-of-stock variation, and it notifies only the people waiting for that specific variation — not everyone on the parent product.

No. Sending runs in the background through Action Scheduler (bundled with WooCommerce) in batches of 50, re-queuing automatically until everyone is notified. It also re-checks that the product is still in stock before each batch, so a stock that drops back to zero mid-send does not email a sold-out product.

No. They only leave an email. Confirmation and unsubscribe both work through secure tokenized links (256-bit tokens), so there is no login and no password anywhere in the flow.

Yes. Besides the automatic WooCommerce hook, the form ships as a shortcode ([acbis_back_in_stock_form]) and a Gutenberg block, both rendered by the same engine. So if your builder's product template does not fire the standard WooCommerce hook, you can place the form yourself anywhere on the page. For popups or modals away from the product page, add mode="product" so the form captures at the product level.

Yes. Submissions go through AJAX and the form fetches a fresh security token at submit time, so it keeps working even on stores with full-page edge caching (Cloudflare, Kinsta and similar) — a stale cached page no longer breaks the form silently.

No. Restock emails are sent from your own site (wp_mail / your SMTP), and your subscribers' data stays in your database. The IP used for anti-abuse rate limiting is stored hashed, never in clear text. The plugin only contacts Freemius for license validation and update checks — never with your customers' data, and only if you opt in or activate a license.

Any standard WooCommerce stock change back to "in stock": editing the product in wp-admin, a bulk CSV import, an inventory sync from an ERP or POS over the API, or WP-CLI. The plugin listens to WooCommerce's own stock hooks, so it does not matter how the stock came back.

Free is the whole loop: the notify-me form on simple and variable products, double opt-in, consent, the automatic restock email, background sending, the subscriber list with filters, and one-click unsubscribe. Pro adds the tools that turn the waiting list into revenue: restock coupons (auto-applied urgency discounts), a recovered-revenue dashboard, SMS & WhatsApp alerts via your own Twilio, automatic sync to Klaviyo/Mailchimp, signed webhooks with Slack/Discord demand alerts, and one-click CSV export. No core feature is locked behind Pro.

No catch. The free version is a complete back-in-stock system for a real store — no subscriber cap, no daily quota, no nag screens. Pro adds the tools to act on that demand — recover sales with coupons, reach customers by SMS/WhatsApp, sync to your email platform and wire it into your stack. We sell the tools that grow on top of the core promise, not the promise itself.

Only the ones you switch on, and only with your own credentials. SMS & WhatsApp (Twilio), email-marketing sync (Klaviyo/Mailchimp) and webhooks are all off by default and opt-in — you bring your own account or endpoint. An SMS or WhatsApp message goes out only to customers who gave separate phone consent. API keys are stored encrypted, and the free version never sends subscriber data anywhere. You decide exactly what leaves your site.

Yes. The button label is configurable in Settings, and the form exposes --acbis-* CSS custom properties (accent, button colors) so you can re-theme it from your own stylesheet without touching the plugin.

Yes. The plugin declares compatibility with WooCommerce High-Performance Order Storage. It does not touch orders — it stores subscriptions in its own table — but the declaration keeps WooCommerce's compatibility screen clean.

14 days, no questions asked. Email info@australcode.io with your order number and the refund is issued through Freemius, our Merchant of Record.